"Cs-based perovskites"@en . . "Low-dimensional perovskites"@en . . . <0000-0002-6895-1334> . "Electron\u2212phonon coupling"@en . "Doru C Lupascu" . "Nontoxic perovskites"@en . "Halide perovskite"@en . "Quantum confinement"@en . "Lead-free perovskites"@en . "Doru" . "Lupascu" .